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23 lines
635 B
LLVM
23 lines
635 B
LLVM
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; RUN: llvm-as < %s | opt -anders-aa -load-vn -gcse -deadargelim | llvm-dis | grep store | not grep null
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; Because the 'internal' function is passed to an external function, we don't
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; know what the incoming values will alias. As such, we cannot do the
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; optimization checked by the 'arg-must-alias.llx' test.
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declare void %external(int(int*)*)
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%G = internal constant int* null
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implementation
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internal int %internal(int* %ARG) {
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;;; We *DON'T* know that ARG always points to null!
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store int* %ARG, int** %G
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ret int 0
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}
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int %foo() {
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call void %external(int(int*)* %internal)
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%V = call int %internal(int* null)
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ret int %V
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}
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